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The logos can be opened with Adobe Illustrator, Macromedia Freehand, CorelDraw or Adobe Photoshop. All the logos are also available in format EPS.
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.............................. SGI Silicon Graphics
Logo and Trademark..............................
Silicon Graphics, Inc. (SGI, historically sometimes referred to as Silicon Graphics Computer Systems (SGCS)) is a company manufacturing high-performance computing solutions, including computer hardware and software. SGI was founded by Jim Clark and Abbey Silverstone in 1982, initially as a maker of 3D graphics display terminals. SGI’s products, strategies and market positions have varied. Its initial products were based on the Geometry Engine that Clark and Marc Hannah had developed at Stanford University, and derived from Clark's broader background in computer graphics. The Geometry Engine was the first VLSI implementation of a geometry pipeline: specialized hardware that accelerated the "inner-loop" geometric computations needed to display three-dimensional images.
SGI was originally incorporated as a California corporation in November 1981, and reincorporated as a Delaware corporation in January 1990. On 8 May 2006, SGI filed for Chapter 11 bankruptcy protection from which it emerged on 17 October 2006. SGI is headquartered in Sunnyvale, California.
In response to these market changes, Silicon Graphics Inc. changed its corporate identity to “SGI” in an attempt to clarify their current market position as more than a graphics company, although its legal name was unchanged.
At the same time in 1999, SGI announced a new logo — simply the letters “sgi” in a stylized lowercase font and a proprietary typeface called “SGI”, created by branding and design consulting firm Landor Associates, in collaboration with designer Joe Stitzlein. The new logo drew criticism for wasting the professional goodwill associated with the previous box-outline logo. SGI later re-adopted the cube logo, and now uses both logos.
Dr. James H. Clark left his position as an electrical engineering associate professor at Stanford University to found SGI in 1982 along with a group of seven graduate students and research staff from Stanford: Kurt Akeley, David J. Brown, Tom Davis, Rocky Rhodes, Marc Hannah, Herb Kuta, and Mark Grossman; Abbey Silverstone - a former manufacturing executive at Xerox; and a few others. The Mayfield Fund venture capital group supplied the initial funding.
SGI rapidly evolved its machines into workstations with its second product line — the IRIS 2000 series. SGI began using the UNIX System V operating system. There were five models in two product ranges, the 2000/2200/2300/2400/2500 range which used 68010 CPUs (the PM2 CPU module), and the later "Turbo" systems, the 2300T, 2400T and 2500T, which had 68020's (the IP2 CPU module). All used the Excelan EXOS/201 ethernet card, the same graphics hardware (GF2 Frame Buffer, UC4 Update Controller, DC4 Display Controller, BP3 Bitplane). Their main differences were the CPU, RAM, and Weitek Floating Point Accelerator boards, disk controllers and disk drives (both ST-506 and SMD were available). These could be upgraded, for example from a 2400 to a 2400T. The 2500 and 2500T had a larger chassis, a standard 6' 19" EIA rack with space for two 150 lb SMD disk drives at the bottom. The non-Turbo models used the Multibus for the CPU to communicate with the floating point accelerator, while the Turbos added a ribbon cable dedicated for this. 60 Hz monitors were used for the 2000 series.
The height of the machines using Motorola CPUs was reached with the IRIS 3000 series (somewhere around 1989, models 3010/3020/3030 and 3110/3115/3120/3130, the 30's both being full-size rack machines). They used the same graphics subsystem and ethernet as the 2000's, but could also use up to 12 "geometry engines", the first widespread use of hardware graphics accelerators. The standard monitor was a 19" 60 Hz non-interlaced unit with a tilt/swivel base; 19" 30 Hz interlaced and a 15" 60 Hz non-interlaced (with tilt/swivel base) were also available.
The IRIS 3130 and its smaller siblings were impressive for the time, being complete 4.2BSD UNIX workstations. The 3130 was powerful enough to support a complete 3D animation and rendering package without mainframe support. With large capacity hard drives by standards of the day (two 300 MB drives), streaming tape and ethernet, it could be the centerpiece of an animation operation. The line was formally discontinued in 1989, with about 3500 systems shipped of all 2000 and 3000 models combined.
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